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Unit-Based Compensation (Tables)
 3 Months Ended
Mar. 31, 2019
Unit-Based Compensation [Abstract]  
Summary of Activity in Awards
A summary of the unit activity in the outstanding grants during 2019 is as follows:
(In thousands)
Common Units
 
Weighted Average Exercise Price
Outstanding at January 1, 2019
55

 
$
29.10

Granted
126

 
$
41.47

Fully vested and issued
(12
)
 
$
41.47

Forfeitures
(15
)
 
$
37.33

Outstanding at March 31, 2019
155

 
$
37.45